From 125933b5756cf8a58c2baacf8818dbd94f86d359 Mon Sep 17 00:00:00 2001
From: Armin <me@obrown.io>
Date: Thu, 28 Jun 2018 16:47:23 +0200
Subject: [PATCH] Be more lenient with fieldnames in Grok Processor (#21745)

---
 libs/grok/src/test/java/org/elasticsearch/grok/GrokTests.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libs/grok/src/test/java/org/elasticsearch/grok/GrokTests.java b/libs/grok/src/test/java/org/elasticsearch/grok/GrokTests.java
index 85289a404395a..4b431caf5b1d7 100644
--- a/libs/grok/src/test/java/org/elasticsearch/grok/GrokTests.java
+++ b/libs/grok/src/test/java/org/elasticsearch/grok/GrokTests.java
@@ -441,7 +441,9 @@ public void testExponentialExpressions() {
     }
 
     public void testUnicodeFieldnames() {
-        for(String fieldName : Arrays.asList("@metadata", "@metädata", "@metädat[a]")) {
+        for (String fieldName : Arrays.asList("@metadata", "@metädata", "@metädat[a]",
+            randomAlphaOfLengthBetween(1, 5), String.valueOf(randomIntBetween(0, 100)),
+            randomAlphaOfLengthBetween(1, 5) + randomIntBetween(0, 100))) {
             String line = "foo";
             Grok grok = new Grok(basePatterns, "%{WORD:" + fieldName + "}");
             Map<String, Object> matches = grok.captures(line);